You can create your own template very easily. First, take a blank sheet of paper and fold it the way you want the card to be. Then write a word or two in the front and inside panels. Now unfold it and use this as a guide later.
Next, open a blank layout page and set it to either portrait or landscape, depending on how you oriented your blank guide. Go to View and Show Rulers. Click and hold in the top ruler and drag down a blue guideline to the center of the page. Do the same with the side ruler. You will now have four quadrants laid out. At this point you may save it as a template.
Using your blank sheet as a guide, insert text boxes and graphics in the appropriate quadrants. In the ones that will need to be upside down, go ahead and create it right side up and then select and rotate the elements using the Metrics Inspector. (Use the up pointing arrow in the bottom right corner,) If you should need to edit or make changes in it, it will flip back to normal when you double click it.
Hope this will work for you.
Walt